EP3759801A1 - Système de refroidissement - Google Patents

Système de refroidissement

Info

Publication number
EP3759801A1
EP3759801A1 EP19706549.3A EP19706549A EP3759801A1 EP 3759801 A1 EP3759801 A1 EP 3759801A1 EP 19706549 A EP19706549 A EP 19706549A EP 3759801 A1 EP3759801 A1 EP 3759801A1
Authority
EP
European Patent Office
Prior art keywords
fluid
cooler
coolant
pump
flow
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP19706549.3A
Other languages
German (de)
English (en)
Inventor
Paul David Flower
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Safran Electrical and Power SAS
Original Assignee
Safran Electrical and Power SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Safran Electrical and Power SAS filed Critical Safran Electrical and Power SAS
Publication of EP3759801A1 publication Critical patent/EP3759801A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D33/00—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for
    • B64D33/08—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for of power plant cooling systems
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/024—Controlling the inlet pressure, e.g. back-pressure regulator
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/04—Control of fluid pressure without auxiliary power
    • G05D16/10—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger
    • G05D16/101—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger the controller being arranged as a multiple-way valve
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators
    • H02K7/1823—Rotary generators structurally associated with turbines or similar engines
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/24—Protection against failure of cooling arrangements, e.g. due to loss of cooling medium or due to interruption of the circulation of cooling medium
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/26—Structural association of machines with devices for cleaning or drying cooling medium, e.g. with filters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators

Definitions

  • the measured point is preferably disposed between the cooler and the at least one cooled component in the fluid circuit.
  • the fluid circuit may be configured to deliver a flow of the fluid from the cooler first through a stator of the generator and subsequently through a rotor of the generator.
  • the pressure may be measured at a point before the fluid flows through the stator, or at a point before the fluid flows through the rotor.
  • the fluid control device may comprise a spool movable within a cavity to direct at least a proportion of the flow of fluid provided by the pump away from the cooler.
  • a second aspect of the present invention provides an aircraft propulsion system comprising a coolant system as outlined above.
  • FIG. 1 shows a coolant system in accordance with the prior art
  • the coolant system 100 also comprises an electrical generator 108, which is cooled by the coolant circuit 102.
  • the electrical generator 108 is arranged in thermal communication with the coolant circuit 102, such that excess heat can be transferred from the electrical generator 108 to the coolant fluid.
  • the coolant runs through one or more components of the generator, and more typically through one or more heat generating components of the generator.
  • Heat generating components of the generator are typically those which generate heat due to electrical resistance during operation of the generator.
  • the electrical generator 108 typically comprises a rotating component, known as a rotor, and/or a stationary component, known as a stator (not shown). It is these components in particular that the coolant circuit 102 is used to cool, though other components of the generator may be cooled in addition to or in place of those components of the generator.
  • the coolant system 200 comprises a coolant circuit 202.
  • the coolant circuit 202 contains a coolant fluid (not shown) which can be circulated around the coolant circuit 202.
  • the coolant can be oil, which can be circulated to and from a coolant reservoir 204, although any suitable coolant fluid can be used, typically a liquid coolant.
  • the coolant circuit 202 is preferably configured such that coolant fluid flows through the rotor 220 first and then through the stator 222, ensuring that the rotor 220 is fed the coldest coolant fluid coming from the cooler 210.
  • the coolant circuit 202 may also be configured such that coolant fluid flows through the stator 222 first and then through the rotor 220.
  • the fluid control device 212 comprises an inlet port 212d for receiving coolant fluid from the pump 206, a first outlet port 212e for directing coolant fluid towards the cooler 210 and around the coolant circuit 202, a second outlet port 212f for directing coolant fluid back towards the reservoir 204 and a pressure metering port 21g for receiving a measured pressure.
  • the pressure is measured at a point before the coolant fluid passes through one of the components of the generator 208, where coolant pressure regulation is needed most. This configuration allows the point of pressure regulation to be selected anywhere within the generator 208, and is thus not limited to the point at which excess flow is being removed from the circuit 202.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

La présente invention concerne un système de refroidissement d'un générateur conçu pour être entraîné par un moteur d'aéronef. Le système de refroidissement comprend un circuit de fluide comportant un fluide en son sein, le fluide permettant de refroidir un générateur d'électricité, et une pompe, conçue pour établir une circulation de fluide autour du circuit de fluide de façon à distribuer un fluide de refroidissement à au moins un composant refroidi du générateur, par l'intermédiaire d'un refroidisseur. Le système comprend également un dispositif de commande de fluide situé entre la pompe et le refroidisseur dans le circuit de fluide, le dispositif de commande de fluide étant conçu pour diriger sélectivement le fluide fourni par la pompe à l'opposé du refroidisseur en fonction d'une pression mesurée dans le circuit de fluide, la pression mesurée étant dérivée d'un point mesuré dans le circuit de fluide, le point mesuré se trouvant à distance du dispositif de commande de fluide.
EP19706549.3A 2018-02-28 2019-02-18 Système de refroidissement Pending EP3759801A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1803278.9A GB2571533B (en) 2018-02-28 2018-02-28 A coolant system
PCT/EP2019/054006 WO2019166262A1 (fr) 2018-02-28 2019-02-18 Système de refroidissement

Publications (1)

Publication Number Publication Date
EP3759801A1 true EP3759801A1 (fr) 2021-01-06

Family

ID=61903269

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19706549.3A Pending EP3759801A1 (fr) 2018-02-28 2019-02-18 Système de refroidissement

Country Status (6)

Country Link
US (1) US20210006130A1 (fr)
EP (1) EP3759801A1 (fr)
JP (1) JP2021515519A (fr)
CN (1) CN111758206A (fr)
GB (1) GB2571533B (fr)
WO (1) WO2019166262A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019124328A1 (de) * 2019-09-11 2021-03-11 Bayerische Motoren Werke Aktiengesellschaft Kühlvorrichtung, Elektromotor und Werkzeugmaschine
GB2595451A (en) * 2020-05-21 2021-12-01 Safran Electrical & Power A coolant system
US20230258205A1 (en) * 2022-02-11 2023-08-17 Hamilton Sundstrand Corporation Pulse width modulated control of servo

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3478777A (en) * 1967-05-12 1969-11-18 Bell Aerospace Corp Valve
US3755702A (en) * 1972-07-31 1973-08-28 Gen Electric Flow surge equipment for dynamoelectric machine
CA2053450A1 (fr) * 1990-10-30 1992-05-01 David Dick Pollard Appareil generateur electrique refroidi par liquide et methode de remplissage du systeme de circulation
US5139055A (en) * 1990-10-30 1992-08-18 Westinghouse Electric Corp. Liquid cooled electric generating apparatus and method for filling a liquid circulation system therein
US5196746A (en) * 1991-10-18 1993-03-23 Sundstrand Corporation Generator auxiliary forced cooling and lubrication system and method
DE19615789A1 (de) * 1996-04-20 1997-10-23 Rexroth Mannesmann Gmbh Vorgesteuertes 3-Wege-Druckregelventil
US6289919B1 (en) * 2000-06-05 2001-09-18 Hamilton Sundstrand Corporation Pressure regulating valve with integral damping
GB0016193D0 (en) * 2000-06-30 2000-08-23 Lucas Industries Ltd Pumps
US7172096B2 (en) * 2004-11-15 2007-02-06 Advanced Technology Materials, Inc. Liquid dispensing system
JP4482471B2 (ja) * 2005-03-17 2010-06-16 株式会社神戸製鋼所 圧縮機
CN101470448A (zh) * 2007-12-27 2009-07-01 江南机器（集团）有限公司 油压机压力恒定补偿装置
DE102008027424A1 (de) * 2008-06-10 2009-12-17 Hydac S.A. Fluidkühlvorrichtung
US20100065496A1 (en) * 2008-09-12 2010-03-18 Milton Roy Company Membrane distillation pressure control system and method
US8485218B2 (en) * 2009-05-06 2013-07-16 Hamilton Sundstrand Corporation Oil pressure regulating valve for generator applications
US20110042967A1 (en) * 2009-08-19 2011-02-24 Winter Curt B Electric generator driven by combustion engine and having fluid cooling
US20120325331A1 (en) * 2011-06-27 2012-12-27 Sonnax Industries, Inc. Pressure Regulator Valve Replacement Assembly
US9316325B2 (en) * 2013-07-25 2016-04-19 Hamilton Sundstrand Corporation Air purging pressure regulating valve
US10007276B2 (en) * 2014-05-20 2018-06-26 Hamilton Sundstrand Corporation Pressure-regulating valves
CN104198175A (zh) * 2014-09-10 2014-12-10 安徽江淮汽车股份有限公司 一种电磁阀测试系统
US9863544B2 (en) * 2014-10-27 2018-01-09 Hamilton Sundstrand Corporation Pressure-regulating valves
US9970557B2 (en) * 2016-06-27 2018-05-15 Travis Victor Dean Loewen Multi-pilot variable pressure relay valve
US10983537B2 (en) * 2017-02-27 2021-04-20 Flow Devices And Systems Inc. Systems and methods for flow sensor back pressure adjustment for mass flow controller
US10348162B1 (en) * 2017-12-21 2019-07-09 Ge Aviation Systems Llc Method and assembly of an electric machine

Also Published As

Publication number Publication date
JP2021515519A (ja) 2021-06-17
GB201803278D0 (en) 2018-04-11
CN111758206A (zh) 2020-10-09
WO2019166262A1 (fr) 2019-09-06
GB2571533B (en) 2022-06-08
GB2571533A (en) 2019-09-04
US20210006130A1 (en) 2021-01-07

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